In addition to the aforementioned risk factors, a number of caveats should be considered before undergoing teeth whitening:
- No amount of bleaching will yield “unnaturally” white teeth.
- Whitening results are not fully seen until approximately two weeks after bleaching. This is an important consideration if you are about to have ceramic restorations and want to be sure the color matches that of your newly bleached teeth.
- If cosmetic bonding, porcelain veneers or other restorations are part of your treatment plan, they should not be placed until a minimum of two weeks following bleaching to ensure proper adhesive bonding, function and shade matching.
- To avoid the technicolor effect, tooth-colored restorations will likely need replacement after bleaching.
- Recessed gums often reveal their yellowish root surfaces at the gum line. That yellow color has proven difficult to bleach.
- Pregnant or nursing women are advised to avoid teeth whitening. The potential impact of swallowed bleach on the fetus or baby is not yet known.
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